package com.zy.config;

import com.zy.filter.JwtAuthenticationTokenFilter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.security.web.access.AccessDeniedHandler;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

/**
 * @author: 13417
 * @create: 2024/5/10 17:48:17
 * @description:
 */
@Configuration
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Bean
    public PasswordEncoder passwordEncoder(){
        return new BCryptPasswordEncoder();
    }

    @Autowired
    JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter;

    @Autowired
    private AccessDeniedHandler accessDeniedHandler;

    @Autowired
    private AuthenticationEntryPoint authenticationEntryPoint;

    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
            // 关闭 csrf
            .csrf().disable()
            // 不通过session 获取SecurityContext
            .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
            .and()
            .authorizeRequests()
            // 对于登录接口 运行匿名访问
            .antMatchers("/user/login").anonymous()
            // 除了上述的请求外所有的请求都需要鉴权认证
            .anyRequest().authenticated();

        //把token校验过滤器添加到过滤器链中
        http.addFilterBefore(jwtAuthenticationTokenFilter, UsernamePasswordAuthenticationFilter.class);

        // 配置异常处理器
        http.exceptionHandling()
                .accessDeniedHandler(accessDeniedHandler)
                .authenticationEntryPoint(authenticationEntryPoint);

        // 配置跨域
        http.cors();
    }

}
